carb question
 

i recently aquired a 13 carb and manifold, and i was wondering if the carb itself will mount up to the 12a manifold? it looks like it will, but i wanna know for sure before tearing shit apart.

Aftermarket, oem, what?

I dont think so. I am in possesion of a 13B reverse runner manifold temporarily and the bolt pattern is different. But the good news is that the runner pattern is almost perfect. The carb secondaries match up great, and the primaries are only slightly off. But not enough to be a problem.

no, is a stocker. but the only thing that got me is that this carb has electric choke, mine is manual. i wonder if i can change jus that over. also, does the 13b flow more cfm's. ive looked all over for specs with no avail :wallbash:

The 12A intake manifold should not fit the 13B since the engine is a little "longer", same thing with the exhaust manifold.

What year is the carburator coming off of? Are you running stock port or street port? Also where abouts in Ontario do you live i Live in London.

Ontario Cali.

Lol way out of what iwas thinking I was thinking the province of Ontario in Canada.

from what hozz told me, its from the gsl-se. im not using the runner, just the carb. the runner is going into the friends rotary luv project. thats why asked if the cfms are higher in the se motor if not, theres no point changing it

The GSL-SE did not come with a carb, it was fuel injected...

How about posting some pics of this carb, it will help us help you.

If the 13b carb that you have is the factory Hitachi that came on the carbed 13b's then it has a slightly different bolt pattern than the Nikki carb that came on the 12a's.

ok, thats what i wanted to know if it was the same bolt pattern. i know it was a fi model, certain few had carbs. le's i think were 13b carb

No, all North America market 13b powered rx7's (SE) were EFI, ALL 12A's were Nikki carbed. And I had it a little backwarda. The bolt pattern on the 13B carb (Hitatchi) is bigger then the Nikki so youd need to make a spacer plate to widen the bolt pattern. It's doable, depending on your fab skills.

I'm almost 100% sure you have an aftermarket one ... but seriously picture will be able to reveil this in a second.

my fab skill are superb, but there is no point wasting time if that hitachi isnt at least 50 cfms more than the nikki. know what i mean vern. im just trying to save some time that i can spend on some other aspect of the rotary.